Malicious PDF — malware analysis report

Static analysis result for SHA-256 280d94403d33acd5…

MALICIOUS

PDF

43.7 KB Created: 2020-08-17 12:54:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8764e0e095c20b41eadbeac4af2d707e SHA-1: e6e04dcca1e8e75e9fe073fc835af7912bc86c8c SHA-256: 280d94403d33acd50aab6ea3efc3861586af143083196ac8c8c798f25f24761d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous links to other PDF files, predominantly hosted on Shopify. The document body itself is heavily obfuscated and contains the malicious URL, suggesting an attempt to lure users to malicious infrastructure. The primary intent appears to be redirecting users to potentially harmful content or phishing sites.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=anno+domini+1257+guide+fr
    • http://files.amityseries.org/uploads/1/3/1/8/131856257/zeriganikud-viwivokuta.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/stihl_br_600_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9807/8372/files/godiva.pdf
    • https://cdn.shopify.com/s/files/1/0435/7714/7547/files/tupugaxolisigulomevo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/55287094080.pdf
    • https://cdn.shopify.com/s/files/1/0430/3434/5625/files/88063620667.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1520/files/80536004568.pdf
    • https://cdn.shopify.com/s/files/1/0449/5589/3928/files/87005390521.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakoximowukod.pdf
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/zulofiwurusutolav.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lorirazapevimixawas.pdf
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/76694065463.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/fidopewebetoguj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6295/files/phoenix_arms_hp22_problems.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063c0.bin
966c7781eccc4dc005f951bad0cc15e91fa3b39f9039a66ebe0fb482cd9634fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C0 1560 bytes
font_01_sfnt_off00006bb1.bin
dd3e091eeaa3b8199e71812c57f6c4d092f2d6699c5c7e20d815b0325b171ade		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB1 5184 bytes
font_02_sfnt_off00007d54.bin
e253485f3e6efe29eb1ef43efe1b4fdfefb3aab1bea4965be5384bbc8b8361de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D54 10616 bytes

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